What is This Plant?

Can you help me identify this plant? I took a tiny cutting from my friend's plant, she calls it a money tree, but she's not sure. It's so easy to grow, I just put a bit of hormone and stuck it in potting soil; it had a milky sap.

I don't think it is euphorbia as this cutting is now about 2.5 ft. tall and has no thorns on the stem. It did have a spike of maroon-colored buds. All its leaves falls out in winter but comes back in full glory from spring to summer and fall, but thanks anyway for the feedback.